Contents
Guitar Riff
The player will need to have built the Shield and activated the Pack a Punch.
Once done on a Max Ammo round the player will need to use the Shield shoot ability and shoot at one of the Brawlers playing the drums, this will then activate a guitar sound effect.
The player will then need to pack a punch a weapon until they get Kill-O-Watt ammo mod. They then need to get 9 headshot kills with this weapon, each headshot kill will make the guitar sound effect.
Finally the player will need to pull out their Shield in front of them and get knife kills till the blade it fully lit up with fire. They then need to head to the 'Odin Altar Room' and shoot the bottom of the Zeus statue with their Shield.
Now every time the player reaches a Max Ammo round they shall hear a guitar riff song instead now and if they look up at the Brawlers playing the drums they shall see them and Axe Throwers rocking out.
If you require a video guide, then the video below will show you how to activate the Guitar Riff song.
This video is provided by JokerAlex 21.
Main Easter Egg Quest
IX contains a main Easter Egg quest which has multiple steps to it and a boss fight. In the video included there are lots of amazing tips to help make this Easter Egg a lot easier and feel a lot less complicated.
If you require a video guide, then the video below will show you how to complete the Main Easter Egg Quest.
This video is provided by Joltz.
Easter Egg Ending Cutscene
The Easter Egg ending cutscene can be seen here.
This video is provided by JokerAlex 21.
Scrapped Hidden Super Easter Egg
Room
There were plans to have a super secret on most of the Black Ops 4 Zombies maps. This however, was a scrapped Easter Egg and as a result is not accessible in game by normal means. However, on the PC version of the game it has been made possible to at least gain access to these rooms now.
This video by MrDalekJD showcases the scrapped Blood of the Dead Hidden Room.
Also credit to Serious for making this possible to be able to do in game.